Book digitized by Google from the library of University of Michigan and uploaded to the Internet Archive by user tpb.
Books in periodicals: v. 1, pt. 2, p. 430-433; v. 2, pt. 2, p. 417-422
v. 1. Qualitative experiments: pt. 1. Students' manual. pt. 2. Instructor's manual.--v. 2. Quantitative experiments: pt. 1. Students' manual. pt. 2. Instructor's manual